Baffle wall for horizontal water-tube boilers Vertical water-tube boiler



June 9, 192.3. 1,459,560

F. c. STIMMEL BAFFLE WALL FOR HORIZONTAL WATER TUBE BOILERS Filed April 5, 1922 2 Sheets-sheet 1 F. 'c. STIMMEL BAFFLE WALL FOR HORIZONTAL WATER TUBE BOILERS.

June 19, 1923.

"Filed April 5, 1922 2 Sheets-Sheet -2 Patented June 19, 1923.

FREDERICK C. STIMMEL', 0F CHATTANOOG-A, TENNESSEE, ASSIGNOR T0 THE CASEY--l PATENT OFFICE.

HEDGES CO., A CORPORATIONOF OHIO.

BAFFLE WALL FOR HORIZONTAL WATER-TUBE BOILERS.

To all whom it 'may concern.'

Be it known that I, F REDERIGK C. STIM- MEL, a citizen of the United States, residing at Chattanooga, in the county of Hamilton and State of Tennessee, have invented certain new and useful Improvements in Baffie Walls for4 Horizontal Water-Tube Boilers, of which the following is a full, clear, and exact specification.

This invention relates to baflie tile for steamA boilers, and has for its vobject to provide tiles of improved construction 'for building up inclined baffles in horizontal water tube boilers, whereby the present f tendency of such tiles to fall over is averted and the tiles made self-supporting. Another object is to form the tiles in such a way that the tubes which they surround may be renewed without removing said tiles or taking down the baffle walls constructed thereof. Other objects will appear as the description proceeds.

The invention will be rst hereinafter 'described in connection with the accompanying drawings, which constitute part of this specification, and then more specifically defined in the claims at the end of the description.

In the laccompanying drawings, wherein 30 similar reference characters are used to designate corresponding parts throughout the several views Figure 1 is a longitudinal vertical section of a horizontal water tube boiler equipped with an inclinedl baiiie wall constructed of tiles formed in accordance with this invention. y

Figure 2 is a detailed view of a few of said tubes with the tiles shown on a larger scale, the tubes being in cross section and the tiles in elevation looking from the fire side of the baflie wall.

Figure 3 is a detailed section on the line III-III of Figure 2.

Figures 4 and 5 are detailed side and front elevations of one of the diamond-shaped inner tiles of the baiie wall, and

Figures 6 and 7 are similar views of one of the outer or edging tiles of the wall.

Experience with horizontal water tube boilers has shown that better results are obtained when the bafie wall l, Figure l, mounted on the fire wall 2, is built on an incline extending upwardly and forwardly as shown in order to gradually restrict the Application filed April 5, 1922. Serial No. 549,914.

space through which the gases rise from the.,k

firebox 3., Suchv inclined baffle walls have heretofore been constructed of flat tiles of uniform thickness from top to bottom, and it has been found that such tiles are apt to fall over when arranged on an incline, making itv diicult to build these walls and maintain them when built. difficulty the present tiles`4, of which the inclined baiie wall 1` is constructed, are formed with their bases 5 thicker than their top edges 6 and with-upwardly converging front and rear faces 7 and 8, respectively, so that the centers of gravity of said tiles will fall rwithin the same andthey will, conse` quently,be self-supporting and not apt to,l

fall over like the fiat tiles heretofore used. Another advantage in the present form of the tiles is that the broad bases thereof, being arranged nearer the fire, will increase the durabilityI of the baille wall', the added thickness being at the points on the tiles subjected to the greatest heat.

In order to permit the water tubes 9 to beV renewed without taking down the vbaffle wall l, as has been the-practice up to the present time, the front faces 7 of the tiles 4 aremade v with bell-shaped mouths 10 leading to the grooves 1l which fit around said tubes; construction permits-new tubes to be readily This To overcome this guided into said grooves when renewals are necessary, the old tubes of course being withdrawn `and the new ones inserted endwise or axially. l l

As illustrated/in Figure 2, the tiles 4 of which the baffle wall l isconstructed may include inner diamond-'shaped tilesl 1'2 having grooves 1l at the top, bottom and opposite sides to fit around four adjacent tubes 9 and the tiles 12 themselves intertting with one another to form the continuous boilers, arrangedV transversely' of thetubes and inclined4 forlwardly forl thev purpose specified, said wall being composed 'of inte-r'- fitting tiles each having its front and rear faces inclined'n a forward and upward direction but at different angles, and the base of each tile being. thicker than its upper ed e.

A baffle wall, for horizontal water tube boilers, arranged transversely of the tubes and inclined forwardly for the purpose speciied, fitting ytiles each having its front and rear faces convergingupwardly, and the Center of gravity of each tile fallingl within its base.

3. A bafl'lewall, for horizontal water tube boilers, arranged transversely ofthe tubes and inclined forwardly for the purpose specified, said wall being composed of interfitting tiles each having its front and rear faces converging upwardly, and the faces of the'tiles on one side ofthe wall being flush with one another.

4f.' A baffle wall, for horizontal water tube boilers, arranged transversely of the tubes and inclined forwardly for the purpose specified, said wall being composed `of interiitting tiles each having its front and rear faces inclined in a forward and upward direction ybut at diferent angles, the base of eachtile being thicker than its upper edge and the center of gravityof each tile falling within its base.

5. An inclined baffle tile having its base of greater thickness than its upperedge, and grooves in its edges tov it around the tubes of a boiler, the ends of said grooves on one face of the tile being bell-shapedl for the purposey specified. 6. A diamond-shaped bafie tile having its base of greater thickness than its upper edge,v

and groovesin said base," upper edge and lateral edges of said tile to fit around the tubes of a boiler, the ends of said grooves on one face of the tile being bell-shaped for the purpose'specified,

saidwall being composed of interdiamond-shaped bale tile' having its base of greater thickness than its upper edge, and its front and' rear faces converging upwardly, there being grooves in said base, up-

per edge and lateral edges of said tile to fit around the tubes of a boiler.

8. An inclined baffle wall composed of ai plurality of rows of interf'itting tiles,eacli tile having its base of greater thickness than its upper edge, and its front and rear faces converging upwardly and forwardly, the rear faces of said tiles being flush with 'one another.

9. A bis@ m11, for horizontal water tube boilers, rarranged transversely of the tubesy and composed of intertting tiles each having grooves in its edges to fit around the tubes, said grooves being bell-shaped at the end in all of the tiles around the same tube,

A(il) whereby the tubes may be guided into place in the wall from all sides.

10. A baffle wall, for 'horizontal water tube boilers, arrangedtransversely ofthe tubes and inclined forwardly for the purpose specified, said wall being composed of inter'- iitting tiles each having its front and rear faces converging upwardly, each tile also having a bell-shaped groove to fit around a tube, said bell-shaped grooves extending entirely around thetube.

l1. An inclined baflie wall, for horizontal I water tube boilers, arranged transversely of the tubes, said wall being composed of inter fitting tiles each having its front and rear faces inclined in a forward and upward dilv rection but at different angles, the base of each tile being thicker than its upper edge.

12. An inclined baffle wall, `forhorizont'al` `water tube boilers, 'arranged transversely of the tubes, said wall being composed of inten' fitting tiles each havingy its front and rear faces inclined in a forward and upward. direction but at different angles, the base of. each tile being thicker than its upper edge -and the center of gravity of each tile falling within its base.

ln testimony whereof I have signed my `name to this specification.

FREDERICK c. sfiiMMiai,` y' 

